layout/mathml/nsMathMLmspaceFrame.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is Mozilla MathML Project.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * The University Of Queensland.
  19  * Portions created by the Initial Developer are Copyright (C) 1999
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Roger B. Sidje <rbs@maths.uq.edu.au>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
  27  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
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  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #ifndef nsMathMLmspaceFrame_h___
  40 #define nsMathMLmspaceFrame_h___
  41
  42 #include "nsCOMPtr.h"
  43 #include "nsMathMLContainerFrame.h"
  44
  45 //
  46 // <mspace> -- space
  47 //
  48
  49 class nsMathMLmspaceFrame : public nsMathMLContainerFrame {
  50 public:
  51   NS_DECL_FRAMEARENA_HELPERS
  52
  53   friend nsIFrame* NS_NewMathMLmspaceFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
  54
  55   virtual PRBool IsLeaf() const;
  56
  57   NS_IMETHOD
  58   Reflow(nsPresContext*          aPresContext,
  59          nsHTMLReflowMetrics&     aDesiredSize,
  60          const nsHTMLReflowState& aReflowState,
  61          nsReflowStatus&          aStatus);
  62
  63 protected:
  64   nsMathMLmspaceFrame(nsStyleContext* aContext) : nsMathMLContainerFrame(aContext) {}
  65   virtual ~nsMathMLmspaceFrame();
  66
  67   virtual PRIntn GetSkipSides() const { return 0; }
  68
  69 private:
  70   nscoord mWidth;
  71   nscoord mHeight;
  72   nscoord mDepth;
  73
  74   // helper method to initialize our member data
  75   void
  76   ProcessAttributes(nsPresContext* aPresContext);
  77 };
  78
  79 #endif /* nsMathMLmspaceFrame_h___ */